It was inevitable. It could have been managed by having a free ticketed event in a large park that needed either a vaccination or a negative test result to unlock.
Now the Met will have to police a rambuctious and mostly group crowd, with no access to puns (still all seated only) and no facilities.
It would have been galling to make those allowances when so many others are sacrificing so much, but it would at least on a public health scale have been better.